Add 84/21 and 27/12, Solve 4 0/21 + 2 3/12 as a fraction

Add 84/21 and 27/12

1^st number: 4 0/21, 2^nd number: 2 3/12

84/21 + 27/12 is 25/4.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 21 × 4 = 84,
84/21 = 84 × 4/21 × 4 = 336/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
27/12 = 27 × 7/12 × 7 = 189/84
Add the two like fractions:
336/84 + 189/84 = 336 + 189/84 = 525/84
525/84 simplified gives 25/4
So, 84/21 + 27/12 = 25/4
In mixed form: 61/4

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